Chaff-separator.



E. G. OLYMANS & M. A. FLAUTTl GHAFF SEPABATOR.

APPLICATION FILED, JAN. 30, 1908.

E E H 1 .A O C u 9 W LVIZENTORS E. G. CLYMANS & M. A. FLAUTT.

GHAFF SEPARATOR.

APPLICATION FILED JAN.30,190B.

2 SHEETS-SHEET 2.

Patented Oct. 20, 1908.

F'ILLB;

WITNESSES [WI/v1 0/0: Z 4 l v; BY

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UNITED STATES PATENT OFFICE.

EZRA G. OLYMANS AND MELVIN A. FLAUTT, OF WAYNESBORO, PENNSYLVANIA, ASSIGNORS TO THE GEISER MANUFACTURING COMPANY, OF WAYNESBORO, PENNSYLVANIA.

GHAFF-SEPARATOR.

To all whom it may concern:

Be it known that we, EZRA G. CLYMANS and MELVIN A. FLAUTT, residing at Waynesboro, in the county of Franklin and State of Pennsylvania, have invented certain new and useful Improvements in Chaff-Separators; and we do hereby declare the following to be a full. clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to the chaff-catchers or chaff-bottoms used in threshing-machines or grain-separators; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed whereby the chaff may be collected separate from the straw or discharged with it, at will.

In the drawings, Figure l is a longitudinal section through the chaff separating mechanism, showing it out of action, Fig. 2 is a longitudinal section through a portion of the chaff-catcher, drawn to a larger scale and showing the trap-door raised and the bottom section of the conveyer spout closed. Fig. 3 is a plan view of the same. Fig. 4 is a longitudinal section through the conveyer and discharge fan.

A is the rear end portion of the casing of a threshing-machine or grain-separator of any approved construction.

B is a portion of the grain-pan or grainbottom on which the grain falls from the straw-racks, and C is the chaff-catcher or chad-bottom arranged under the grain-pan B. The chaff is normally blown out of the rear end of the machine onto the straw stacker by a blast of air which is driven between the parts 13 and C in the direction of the arrows, and a portion of the chaff falls on the chaff-catcher and is discharged by it. The chaff-catcher is supported in the casing and is operated in any approved manner.

In order to collect the chaff separate from the straw, the chalf-catcher C is provided with a trap-door C having a hinge c at its rear edge and opening upwardly.

D is a forked bracket secured to one side of the chaff-catcher, and d is a second forked bracket also secured to one side of the chaffcatcher to the rear of the bracket D and adjacent to the hinge of the door.

E is a bracket secured to the trap-door, and provided with a longitudinal slot 6.

F is a catch which is slidable in the slot 6,

Specification of Letters Patent.

Application filed January 30, 1908. Serial No. 413,422.

Patented Oct. 20, 1908.

and f is a thumb-nut for securing the said catch in the slot. WVhen the trap-door closes the opening 0 the catch F engages with the bracket D, and the chaff is blown out at the rear end of the machine onto the strawstacker. When the trap-door is opened, as

shown in Fig. 2, the catch is slid into engagement with the bracket (Z, and the blast of air is obstructed so that most of the chaff falls through the opening 0' in the chaff-catcher.

G is the chaff-spout under the trap-door. This spout is provided with a removable bottom section 9, which may be taken off altogether, but which is preferably connected to the main portion of the spout by hinges .h and a catch h.

H is a spiral conveyer of any approved construction provided with a driving shaft i and arranged in the conveyer spout.

I is a fan casing at one end of the conveyer spout, and J is a discharge fan of any approved construction secured on the shaft 2' and arranged in the casing I. The shaft '5 is journaled in bearings 71 of any approved construction, which are supported from the casing A.

K 1s a driving pulley which is journaled on one end portion of the shaft 2'. A collar is secured to the shaft 2' on one side of the pulley, and the pulley is provided with a clutch-member m on its hub on the other side of it from the collar la. A removable and reversible clutch-member a is secured to the shaft 2' by a set-screw 2' or any other approved means.

When the trap-door is closed the position of the clutch-member n is reversed on the shaft, so that the shaft is not revolved by the driving pulley.

The object in providing the chaff spout with a hinged bottom section is to enable it to be discharged of the accumulation of dirt and fine chaff which finds its way into it when the trap-door is closed and which becomes packed into a dense mass after the machine has been at Work for a considerable time with the trap-door closed.

The fan I discharges the chaff through its delivery pipe p into any convenient receptacle.

What we claim is:

1. The combination, with the rear end portion of a grain-separator, and a grainpan arran ed therein; of a chaff-catcher arranged be ow the said grain-pan and provided with an opening, and a. door pivotally connected to the rear side of the said opening and operating when raised to obstruct the rearward current of blast and chafi' between the said grain-pan and chaff-catcher, so that the chaff falls through the said opening.

2. The combination, with the rear end portion of a grain-separator, anda grainpan arranged therein; of a chaff-catcher arranged below the said grain-pan and provided with an opening, a door pivotally connected to the rear side of the said opening and operating when raised to obstruct the current of blast and chaff between the said grain-pan and chaff-catcher, and catch mechanism for securing the said door in different positions.

3. The combination, with the rear end portion of a grain separator, of a chaffcatcher supported therein and provided with an opening, a door normally closing the said opening, and means for supporting the said door in a raised position at the rear side of the said opening to obstruct the rearward current of blast and chafi, so that the chafl falls through the said opening.

ft. The combination, with a chaff-catcher provided with an opening, of a conveyer spout secured under the said opening, a fan casing secured at one end of the said spout, a driving shaft arranged in the said spout and casing, a spiral conveyer secured on the said shaft and arranged in the said spout, a delivery fan secured on the said shaft and arranged in the said casing, and trap-door for closing the said opening.

In testimony whereof we afiix our signatures, in presence of two witnesses.

EZRA G. CLYMANS. MELVIN A. FLAUTT. Vitnesses ALF N. RUSSELL, GEO. I-I. RUSSELL. 

